Vr. Gopal et al., SEMICONDUCTOR PHOTOINDUCED ISOMERIZATION OF RETINOL ACETATE AND RETINOL, Journal of photochemistry and photobiology. A, Chemistry, 74(1), 1993, pp. 81-84
Irradiation of the visible-light-absorbing semiconductors CdSe and CdS
suspended in organic solvents in the presence of retinol and retinol
acetate catalysed cis-trans isomerization in retinoids selectively at
trisubstituted double bonds.